package cn.iocoder.yudao.module.crossborder.platform.job.amazon;

import cn.iocoder.yudao.framework.tenant.core.job.TenantJob;
import cn.iocoder.yudao.module.crossborder.platform.dal.dataobject.platformauth.PlatformAuthDO;
import cn.iocoder.yudao.module.crossborder.platform.dal.dataobject.platformstore.PlatformStoreDO;
import cn.iocoder.yudao.module.crossborder.platform.service.platformauth.PlatformAuthService;
import cn.iocoder.yudao.module.crossborder.platform.service.platformstore.PlatformStoreService;
import cn.iocoder.yudao.module.crossborder.platform.service.provider.amazon.AmazonAuthProvider;
import cn.iocoder.yudao.module.crossborder.platform.service.provider.amazon.AmazonBusinessService;
import cn.iocoder.yudao.module.crossborder.platform.service.provider.amazon.AmazonPlatformProvider;
import com.xxl.job.core.handler.annotation.XxlJob;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Amazon监控和健康检查定时任务
 *
 * @author 芋道源码
 */
@Component
@Slf4j
public class AmazonMonitorJob {

    @Resource
    private AmazonPlatformProvider amazonPlatformProvider;
    
    @Resource
    private AmazonAuthProvider amazonAuthProvider;
    
    @Resource
    private AmazonBusinessService amazonBusinessService;
    
    @Resource
    private PlatformStoreService platformStoreService;
    
    @Resource
    private PlatformAuthService platformAuthService;

    // Amazon平台ID
    private static final Long AMAZON_PLATFORM_ID = 1L;

    /**
     * Amazon平台健康检查
     * 每5分钟执行一次
     */
    @XxlJob("amazonHealthCheckJob")
    @TenantJob
    public String executeHealthCheck(String param) throws Exception {
        log.info("开始执行Amazon平台健康检查: param={}", param);
        
        try {
            Map<String, Object> healthStatus = new HashMap<>();
            
            // 1. 检查平台基础健康状态
            boolean platformHealthy = amazonPlatformProvider.isHealthy();
            healthStatus.put("platformHealthy", platformHealthy);
            
            // 2. 检查店铺授权状态
            Map<String, Object> authStatus = checkStoreAuthStatus();
            healthStatus.put("authStatus", authStatus);
            
            // 3. 检查API连接状态
            Map<String, Object> apiStatus = checkApiConnectivity();
            healthStatus.put("apiStatus", apiStatus);
            
            // 4. 检查同步任务状态
            Map<String, Object> syncStatus = checkSyncTaskStatus();
            healthStatus.put("syncStatus", syncStatus);
            
            // 5. 汇总健康状态
            boolean overallHealthy = platformHealthy && 
                (Boolean) authStatus.getOrDefault("healthy", false) &&
                (Boolean) apiStatus.getOrDefault("healthy", false) &&
                (Boolean) syncStatus.getOrDefault("healthy", false);
            
            healthStatus.put("overallHealthy", overallHealthy);
            healthStatus.put("checkTime", LocalDateTime.now());
            
            if (!overallHealthy) {
                log.warn("Amazon平台健康检查发现问题: {}", healthStatus);
                // TODO: 发送告警通知
            } else {
                log.debug("Amazon平台健康检查正常");
            }
            
            return overallHealthy ? "健康检查正常" : "健康检查发现问题";
            
        } catch (Exception e) {
            log.error("Amazon平台健康检查失败", e);
            throw e;
        }
    }

    /**
     * Amazon授权令牌刷新
     * 每30分钟执行一次
     */
    @XxlJob("amazonTokenRefreshJob")
    @TenantJob
    public String executeTokenRefresh(String param) throws Exception {
        log.info("开始执行Amazon授权令牌刷新: param={}", param);
        
        try {
            // 获取即将过期的授权（提前1小时刷新）
            LocalDateTime expireThreshold = LocalDateTime.now().plusHours(1);
            List<PlatformAuthDO> expiredAuths = platformAuthService.getExpiredAuthList(expireThreshold);
            
            int successCount = 0;
            int failedCount = 0;
            
            for (PlatformAuthDO auth : expiredAuths) {
                // 只处理Amazon平台的授权
                if (!AMAZON_PLATFORM_ID.equals(auth.getPlatformId())) {
                    continue;
                }
                
                try {
                    if (auth.getAutoRefresh()) {
                        boolean refreshed = amazonAuthProvider.refreshAccessToken(auth.getStoreId());
                        if (refreshed) {
                            successCount++;
                            log.info("自动刷新Amazon访问令牌成功: storeId={}", auth.getStoreId());
                        } else {
                            failedCount++;
                            log.warn("自动刷新Amazon访问令牌失败: storeId={}", auth.getStoreId());
                        }
                    }
                } catch (Exception e) {
                    failedCount++;
                    log.error("自动刷新Amazon访问令牌异常: storeId={}", auth.getStoreId(), e);
                }
            }
            
            return String.format("令牌刷新完成: 成功=%d, 失败=%d", successCount, failedCount);
            
        } catch (Exception e) {
            log.error("Amazon授权令牌刷新失败", e);
            throw e;
        }
    }

    /**
     * Amazon库存预警检查
     * 每小时执行一次
     */
    @XxlJob("amazonInventoryAlertJob")
    @TenantJob
    public String executeInventoryAlert(String param) throws Exception {
        log.info("开始执行Amazon库存预警检查: param={}", param);
        
        try {
            List<PlatformStoreDO> amazonStores = getAmazonStores();
            int alertCount = 0;
            
            for (PlatformStoreDO store : amazonStores) {
                try {
                    Map<String, Object> alerts = amazonBusinessService.getInventoryAlerts(store.getId());
                    
                    if ((Boolean) alerts.getOrDefault("success", false)) {
                        String alertLevel = (String) alerts.getOrDefault("alertLevel", "NORMAL");
                        
                        if (!"NORMAL".equals(alertLevel)) {
                            alertCount++;
                            log.warn("Amazon店铺库存预警: storeId={}, alertLevel={}, alerts={}", 
                                store.getId(), alertLevel, alerts);
                            
                            // TODO: 发送库存预警通知
                        }
                    }
                } catch (Exception e) {
                    log.error("检查Amazon店铺库存预警失败: storeId={}", store.getId(), e);
                }
            }
            
            return String.format("库存预警检查完成: 预警店铺=%d", alertCount);
            
        } catch (Exception e) {
            log.error("Amazon库存预警检查失败", e);
            throw e;
        }
    }

    /**
     * Amazon性能监控
     * 每15分钟执行一次
     */
    @XxlJob("amazonPerformanceMonitorJob")
    @TenantJob
    public String executePerformanceMonitor(String param) throws Exception {
        log.info("开始执行Amazon性能监控: param={}", param);
        
        try {
            Map<String, Object> performanceMetrics = new HashMap<>();
            
            // 1. 监控API调用性能
            Map<String, Object> apiMetrics = monitorApiPerformance();
            performanceMetrics.put("apiMetrics", apiMetrics);
            
            // 2. 监控同步任务性能
            Map<String, Object> syncMetrics = monitorSyncPerformance();
            performanceMetrics.put("syncMetrics", syncMetrics);
            
            // 3. 监控错误率
            Map<String, Object> errorMetrics = monitorErrorRate();
            performanceMetrics.put("errorMetrics", errorMetrics);
            
            // 4. 检查性能阈值
            boolean performanceHealthy = checkPerformanceThresholds(performanceMetrics);
            performanceMetrics.put("performanceHealthy", performanceHealthy);
            performanceMetrics.put("monitorTime", LocalDateTime.now());
            
            if (!performanceHealthy) {
                log.warn("Amazon性能监控发现问题: {}", performanceMetrics);
                // TODO: 发送性能告警
            }
            
            return performanceHealthy ? "性能监控正常" : "性能监控发现问题";
            
        } catch (Exception e) {
            log.error("Amazon性能监控失败", e);
            throw e;
        }
    }

    // ==================== 辅助方法 ====================

    /**
     * 检查店铺授权状态
     */
    private Map<String, Object> checkStoreAuthStatus() {
        Map<String, Object> authStatus = new HashMap<>();
        
        try {
            List<PlatformStoreDO> amazonStores = getAmazonStores();
            int totalStores = amazonStores.size();
            int validAuthCount = 0;
            int expiredAuthCount = 0;
            int invalidAuthCount = 0;
            
            for (PlatformStoreDO store : amazonStores) {
                try {
                    boolean isValid = amazonAuthProvider.validateAuth(store.getId());
                    if (isValid) {
                        validAuthCount++;
                    } else {
                        PlatformAuthDO auth = platformAuthService.getPlatformAuthByStoreId(store.getId());
                        if (auth != null && auth.getTokenExpireTime() != null && 
                            auth.getTokenExpireTime().isBefore(LocalDateTime.now())) {
                            expiredAuthCount++;
                        } else {
                            invalidAuthCount++;
                        }
                    }
                } catch (Exception e) {
                    invalidAuthCount++;
                    log.error("检查店铺授权状态失败: storeId={}", store.getId(), e);
                }
            }
            
            authStatus.put("totalStores", totalStores);
            authStatus.put("validAuthCount", validAuthCount);
            authStatus.put("expiredAuthCount", expiredAuthCount);
            authStatus.put("invalidAuthCount", invalidAuthCount);
            authStatus.put("healthy", invalidAuthCount == 0 && expiredAuthCount < totalStores * 0.2); // 过期率低于20%
            
        } catch (Exception e) {
            log.error("检查店铺授权状态失败", e);
            authStatus.put("healthy", false);
            authStatus.put("error", e.getMessage());
        }
        
        return authStatus;
    }

    /**
     * 检查API连接状态
     */
    private Map<String, Object> checkApiConnectivity() {
        Map<String, Object> apiStatus = new HashMap<>();
        
        try {
            // TODO: 实现API连接检查逻辑
            // 1. 检查各个API端点的连通性
            // 2. 检查响应时间
            // 3. 检查错误率
            
            apiStatus.put("healthy", true);
            apiStatus.put("responseTime", 200); // 毫秒
            apiStatus.put("errorRate", 0.01); // 1%
            
        } catch (Exception e) {
            log.error("检查API连接状态失败", e);
            apiStatus.put("healthy", false);
            apiStatus.put("error", e.getMessage());
        }
        
        return apiStatus;
    }

    /**
     * 检查同步任务状态
     */
    private Map<String, Object> checkSyncTaskStatus() {
        Map<String, Object> syncStatus = new HashMap<>();
        
        try {
            // TODO: 实现同步任务状态检查逻辑
            // 1. 检查最近的同步任务执行情况
            // 2. 检查失败率
            // 3. 检查同步延迟
            
            syncStatus.put("healthy", true);
            syncStatus.put("recentTaskCount", 10);
            syncStatus.put("successRate", 0.95); // 95%
            syncStatus.put("avgDelay", 5); // 分钟
            
        } catch (Exception e) {
            log.error("检查同步任务状态失败", e);
            syncStatus.put("healthy", false);
            syncStatus.put("error", e.getMessage());
        }
        
        return syncStatus;
    }

    /**
     * 获取Amazon店铺列表
     */
    private List<PlatformStoreDO> getAmazonStores() {
        try {
            return platformStoreService.getAuthorizedStoresByPlatformId(AMAZON_PLATFORM_ID);
        } catch (Exception e) {
            log.error("获取Amazon店铺列表失败", e);
            return new ArrayList<>();
        }
    }

    /**
     * 监控API性能
     */
    private Map<String, Object> monitorApiPerformance() {
        // TODO: 实现API性能监控逻辑
        Map<String, Object> metrics = new HashMap<>();
        metrics.put("avgResponseTime", 250); // 毫秒
        metrics.put("maxResponseTime", 1000);
        metrics.put("minResponseTime", 100);
        metrics.put("requestCount", 1000);
        return metrics;
    }

    /**
     * 监控同步性能
     */
    private Map<String, Object> monitorSyncPerformance() {
        // TODO: 实现同步性能监控逻辑
        Map<String, Object> metrics = new HashMap<>();
        metrics.put("avgSyncTime", 30); // 秒
        metrics.put("maxSyncTime", 120);
        metrics.put("syncThroughput", 100); // 记录/分钟
        return metrics;
    }

    /**
     * 监控错误率
     */
    private Map<String, Object> monitorErrorRate() {
        // TODO: 实现错误率监控逻辑
        Map<String, Object> metrics = new HashMap<>();
        metrics.put("apiErrorRate", 0.02); // 2%
        metrics.put("syncErrorRate", 0.05); // 5%
        metrics.put("authErrorRate", 0.01); // 1%
        return metrics;
    }

    /**
     * 检查性能阈值
     */
    private boolean checkPerformanceThresholds(Map<String, Object> metrics) {
        // TODO: 实现性能阈值检查逻辑
        // 检查各项指标是否超过阈值
        return true; // 临时返回正常
    }
}
